JP2003176415A - Dilatant liquid - Google Patents
Dilatant liquidInfo
- Publication number
- JP2003176415A JP2003176415A JP2001378449A JP2001378449A JP2003176415A JP 2003176415 A JP2003176415 A JP 2003176415A JP 2001378449 A JP2001378449 A JP 2001378449A JP 2001378449 A JP2001378449 A JP 2001378449A JP 2003176415 A JP2003176415 A JP 2003176415A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- weight
- parts
- dilatancy
- compound particles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Silicon Polymers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は高せん断力下で高粘
性となり、低せん断力下で低粘性となるダイラタンシー
性を示す液体に関する。このような液体は２個の近接し
て相対移動する物体間に配置され、高いずり速度のもと
では高いトルクを伝達し、低いずり速度のもとでは低い
トルクを伝達するクラッチや防振装置などの作動液体と
して有用である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dilatancy liquid which becomes highly viscous under a high shear force and has a low viscosity under a low shear force. Such a liquid is placed between two closely moving objects and transmits a high torque at a high shear rate and a low torque at a low shear rate. It is useful as a working liquid.
【０００２】[0002]
【従来の技術】従来、微細粒子を分散した液体において
は、せん断力を加えると、低いせん断力下では低い粘性
を示すが、加えるせん断力を増加させると、急激に高い
粘性を示す現象、即ち、ダイラタンシー性を示すことが
知られている。このダイラタンシー性は、粒子のパック
キング状態が急激な外力により、一時的に変化すること
から起こる現象である。いま簡単のために、同じ大きさ
の球形粒子の集合を考えると、最密パックキングでは空
隙率は２６％である。この状態では、粒子間の空間を埋
めるに足りるだけの液体を吸収すれば球形粒子の集合体
は静かに流動することができる。しかし、いま、これに
急激に強い外力が加えられると、球形粒子の集合は疎な
パックキング状態に移行する。例えば、最疎パックキン
グでは、空隙率は４８％であるから、その増大した空間
に、上記液体が全部内部に吸い込まれてもまだ足りず、
液体に浸されないで、擦れ合う粒子ができる。ダイラタ
ンシー性において、表面の液体が内部に吸い込まれて、
体積が膨張し、流動性が失われて、脆い固体のような挙
動をするのはこのためである。例を挙げれば、海岸の濡
れた砂地を足で踏むと、砂粒の間隙が広がり、海水が砂
の中へ吸い込まれて、砂地は乾いて見え、固くなる現象
がこれであり、また、無機物の結晶沈澱を吸引濾過する
ときにもダイラタンシー現象が観察される。2. Description of the Related Art Conventionally, in a liquid in which fine particles are dispersed, when a shearing force is applied, a low viscosity is exhibited under a low shearing force, but when a shearing force is increased, a phenomenon in which the viscosity is rapidly increased, namely, , Is known to exhibit dilatancy. This dilatancy is a phenomenon that occurs because the packing state of particles temporarily changes due to a sudden external force. For the sake of simplicity, when considering a set of spherical particles having the same size, the porosity is 26% in the close packing. In this state, if a sufficient amount of liquid is absorbed to fill the space between the particles, the aggregate of spherical particles can gently flow. However, when a strong external force is suddenly applied to this, the aggregate of spherical particles shifts to a sparse packing state. For example, in the most sparse packing, since the porosity is 48%, it is still insufficient even if all the liquid is sucked into the increased space,
Particles are rubbed against each other without being immersed in liquid. In dilatancy, the liquid on the surface is sucked in,
This is why it expands in volume, loses fluidity and behaves like a brittle solid. For example, when you step on a wet sandy land on the coast with a foot, the gap between the sand grains expands, seawater is sucked into the sand, and the sandy land appears to be dry and hard. The dilatancy phenomenon is also observed when the crystalline precipitate is filtered by suction.
【０００３】ダイラタンシー性を示す液体としてドイツ
ＢＡＳＦ社のダイラタール（登録商標）が知られてい
る。これはアクリル酸エステル−スチレン共重合体微粒
子を水に分散させたものである。また、特開平８−２８
１０９５号では、真球度１．１以下の無機化合物微粒子
と液体とからなるダイラタンシー性を示す液体が報告さ
れており、この請求項の中ではシリコーンオイルを使用
することが記載されている。Dilatal (registered trademark) of BASF Germany is known as a liquid exhibiting dilatancy. This is a dispersion of fine particles of acrylic acid ester-styrene copolymer in water. In addition, JP-A 8-28
No. 1095 reports a liquid having a dilatancy, which is composed of fine particles of an inorganic compound having a sphericity of 1.1 or less and a liquid, and the use of silicone oil is described in this claim.
【０００４】従来、公知のダイラタンシー性液体は、分
散媒が水または揮発性の溶剤であるため、分散媒が低温
では固化し、高温では揮発しやすいという問題があっ
た。また、そこまで至らない場合でも、粘度変化が激し
く、室温付近でしか使用できないといった問題があっ
た。また、耐熱、耐寒性に優れるジメチルシリコーンオ
イルやメチルフェニルシリコーンオイルを分散媒として
用いても、ダイラタンシー性を示さない。Conventionally, the known dilatancy liquid has a problem that the dispersion medium is water or a volatile solvent, so that the dispersion medium is solidified at a low temperature and easily volatilized at a high temperature. Further, even if it does not reach that level, there is a problem that the viscosity changes drastically and it can be used only near room temperature. Even if dimethyl silicone oil or methylphenyl silicone oil, which has excellent heat resistance and cold resistance, is used as the dispersion medium, it does not exhibit dilatancy.
【０００５】[0005]
【発明が解決しようとする課題】本発明の課題は、広い
温度範囲で液状を保持し、機械的強度が大きく、せん断
応力の増大に伴う粘性抵抗の変化量が大きい、新規なダ
イラタンシー性液体を提供することにある。An object of the present invention is to provide a novel dilatancy liquid which holds a liquid in a wide temperature range, has a large mechanical strength, and has a large amount of change in viscous resistance due to an increase in shear stress. To provide.
【０００６】[0006]
【課題を解決するための手段】発明者らは前記課題を解
決するために鋭意研究した結果、窒素原子含有の官能基
を有するオルガノポリシロキサン１０〜５００重量部、
無機化合物粒子または有機化合物粒子１００重量部から
なり、低せん断力下でゾル状となり、高せん断力下でゲ
ル状となるダイラタンシー性液体を見出した。このダイ
ラタンシー性液体は温度変化に伴う粘度変化が小さく、
広い範囲で液状を保持し、機械的強度が大きく、せん断
応力の増大に伴う粘性抵抗の変化量が大きいものであ
る。窒素原子含有の官能基を有するオルガノポリシロキ
サンの中でも下記一般式（１）で表されるアミノ変性オ
ルガノポリシロキサンが特に好ましい。
ＲaＲ’bＳｉＯ(4-a-b)/2 （１）
[式中、Ｒは置換または非置換の1価炭化水素基、Ｒ’は
アミノ基含有の1価炭化水素基、ａ，ｂは０≦ａ≡２．
０，０≡ｂ≡１．０，０≡（ａ+ｂ）≡２．５を満たす
数である]Means for Solving the Problems As a result of intensive studies for solving the above problems, the inventors have found that 10 to 500 parts by weight of organopolysiloxane having a nitrogen atom-containing functional group,
We have found a dilatancy liquid consisting of 100 parts by weight of inorganic compound particles or organic compound particles, which becomes a sol under a low shear force and becomes a gel under a high shear force. This dilatancy liquid has a small change in viscosity with changes in temperature,
It holds a liquid in a wide range, has a large mechanical strength, and has a large amount of change in viscous resistance due to an increase in shear stress. Among the organopolysiloxanes having a nitrogen atom-containing functional group, the amino-modified organopolysiloxane represented by the following general formula (1) is particularly preferable. R a R ′ b SiO (4-ab) / 2 (1) [wherein R is a substituted or unsubstituted monovalent hydrocarbon group, R ′ is an amino group-containing monovalent hydrocarbon group, and a and b are 0 ≦ a≡2.
It is a number that satisfies 0,0≡b≡1.0,0≡ (a + b) ≡2.5]
【０００７】[0007]
【発明の実施の形態】本発明における無機化合物粒子ま
たは有機化合物粒子の粒径は特に限定の必要はないが、
好ましくは０．０５〜５μｍであり、より好ましくは
０．１〜１．５μｍである。粒径が大きすぎると粒子の
分散が不安定となり、沈降してしまい、溶媒と分離して
しまう。粒径が小さすぎるとゾル状態下での粘度が増加
し、典型的なダイラタンシー性を示し難く、好ましくな
い。本発明における無機化合物粒子の表面状態は凹凸が
少なく平滑であり、より球状に近いほど好ましい。本発
明における無機化合物粒子の化学組成としてはＳｉ,Ａ
ｌ,Ｍｇ,Ｚｒの酸化物及び窒化物が好ましい。これら酸
化物及び窒化物は機械的強度が大きく、化学的に安定で
あるから、これらを原料としたダイラタンシー性液体を
前記用途に使用した場合、使用中に砕けたり、化学変化
したりすることが少なく安定している。これらの具体例
としてはシリカ、アルミナ，マグネシア，ジルコニア，
四窒化三珪素，窒化アルミニウム，窒化マグネシウム，
窒化ジルコニウムなどを挙げることができる。BEST MODE FOR CARRYING OUT THE INVENTION The particle size of the inorganic compound particles or the organic compound particles in the present invention is not particularly limited,
The thickness is preferably 0.05 to 5 μm, more preferably 0.1 to 1.5 μm. If the particle size is too large, the particles become unstable in dispersion and settle out to separate from the solvent. If the particle size is too small, the viscosity in the sol state increases and it is difficult to exhibit typical dilatancy, which is not preferable. The surface state of the inorganic compound particles in the present invention is smooth with few irregularities, and the more spherical the more preferable. The chemical composition of the inorganic compound particles in the present invention is Si, A
Preferred are oxides and nitrides of 1, Mg, Zr. Since these oxides and nitrides have large mechanical strength and are chemically stable, when a dilatancy liquid using them as a raw material is used for the above-mentioned purpose, they may be crushed or chemically changed during use. Less stable. Specific examples of these include silica, alumina, magnesia, zirconia,
Trisilicon tetranitride, aluminum nitride, magnesium nitride,
Examples thereof include zirconium nitride.
【０００８】本発明における有機化合物粒子としてはシ
ロキサン重合体、（メタ）アクリル系共重合体、ナイロ
ン樹脂、ポリオレフィンなどが使用可能である。好まし
くはシロキサン重合体であり、ゴム状、レジン状または
複合パウダーのシロキサン重合体が挙げられる。As the organic compound particles in the present invention, siloxane polymer, (meth) acrylic copolymer, nylon resin, polyolefin and the like can be used. Preferred is a siloxane polymer, and examples thereof include rubber-like, resin-like, or composite powder siloxane polymers.
【０００９】本発明のダイラタンシー性液体の液状成分
として、特に好ましいのは下記一般式（２）で示される
直鎖状の窒素原子含有シロキサンである。The liquid component of the dilatancy liquid of the present invention is particularly preferably a linear nitrogen atom-containing siloxane represented by the following general formula (2).
【化１】
〔式中、Ｒ1は同一または異種の、置換または非置換の
１価炭化水素基、Ｒ2は−Ｒ3−ＮＨＲ4、−Ｒ3−ＮＨ
（ＣＯ）Ｒ4、−Ｒ3−ＮＨ（ＣＯ）ＯＲ4の中の１種
（但し、Ｒ3はメチレン基、エチレン基などの２価のア
ルキレン基、Ｒ4はメチル基、エチル基、フェニル基な
どの１価の炭化水素基または水素原子である。）を表
し、ａ，ｂはともに０〜１０の整数である。〕
特に好ましいシロキサンは、下記一般式（３）、（４）
が挙げられる。[Chemical 1] [In the formula, R 1 is the same or different, a substituted or unsubstituted monovalent hydrocarbon group, and R 2 is -R 3 -NHR 4 , -R 3 -NH
One of (CO) R 4 and —R 3 —NH (CO) OR 4 (provided that R 3 is a divalent alkylene group such as a methylene group or an ethylene group, R 4 is a methyl group, an ethyl group or phenyl) A monovalent hydrocarbon group such as a group or a hydrogen atom), and a and b are both integers from 0 to 10. ] Particularly preferred siloxanes are represented by the following general formulas (3) and (4)
Is mentioned.
【００１０】[0010]
【化２】 （但し、ＲはＣＨ3またはＯＣＨ3、ｍ、ｎは整数） （但し、ＲはＣＨ3またはＯＣＨ3、ｍ、ｎは整数）[Chemical 2] (However, R is CH 3 or OCH 3 , m and n are integers) (However, R is CH 3 or OCH 3 , m and n are integers)
【００１１】また、前記一般式で示されるアミノ変性オ
ルガノポリシロキサンの合成法は、ポリシロキサンにア
ミノ基を導入するが、アミノアルキルアルコキシシラン
の加水分解オリゴマーとオクタメチルシクロテトラシロ
キサンのような環状シロキサンとを水酸化カリウムの存
在下、加熱する方法、平衡化に依らず、両末端に水酸基
を有するジメチルポリシロキサンとアミノアルキルジア
ルコキシシランとの脱アルコール反応による方法などが
ある。Further, in the method of synthesizing the amino-modified organopolysiloxane represented by the above general formula, an amino group is introduced into the polysiloxane, but a hydrolyzed oligomer of aminoalkylalkoxysilane and a cyclic siloxane such as octamethylcyclotetrasiloxane are used. In the presence of potassium hydroxide, there are a method of heating and a method of dealcoholation reaction between dimethylpolysiloxane having hydroxyl groups at both ends and aminoalkyldialkoxysilane without depending on equilibration.
【００１２】本発明のダイラタンシー性液体において、
無機化合物粒子または有機化合物粒子１００重量部に対
する窒素原子含有の官能基を有するオルガノポリシロキ
サンの混合比率は１０〜５００重量部である。無機化合
物粒子または有機化合物粒子１００重量部に対する、オ
ルガノポリシロキサンの好ましい混合比率は３０〜１０
０重量部である。１０重量部未満であると、本発明のダ
イラタンシー性液体がスラリー状となり、均一に混合す
るのが困難となり、また、実際使用するとき充填が困難
となる。５００重量部を超えると、粒子の沈降が速く、
ダイラタンシー性が発現し難い。In the dilatancy liquid of the present invention,
The mixing ratio of the organopolysiloxane having a functional group containing a nitrogen atom is 10 to 500 parts by weight with respect to 100 parts by weight of the inorganic compound particles or the organic compound particles. A preferable mixing ratio of the organopolysiloxane is 100 to 100 parts by weight of the inorganic compound particles or the organic compound particles.
0 parts by weight. If the amount is less than 10 parts by weight, the dilatancy liquid of the present invention becomes a slurry, which makes it difficult to uniformly mix, and also makes it difficult to fill when actually used. If it exceeds 500 parts by weight, the particles settle quickly,
Dilatancy is difficult to develop.
【００１３】本発明のダイラタンシー性液体において、
無機化合物粒子または有機化合物粒子の、窒素原子含有
の官能基を有するオルガノポリシロキサンに対する分散
性を向上させるために、あるいは、無機化合物粒子また
は有機化合物粒子の比重を分散媒である窒素原子含有の
官能基を有するオルガノポリシロキサンのそれに近づけ
るために、粒子の表面をシランカップリング剤またはチ
タンカップリング剤で処理するか、または、公知の分散
性向上剤を添加することは任意である。好ましい分散性
向上剤の添加量は１〜２０重量部である。本発明で使用
可能なシランカップリング剤を例示すると、ビニルトリ
エトキシシラン，３−メタクリロキシプロピルトリメト
キシシラン，３−グリシドキシプロピルトリメトキシシ
ラン，３−アミノプロピルトリエトキシシラン，３−メ
ルカプトプロピルトリメトキシシラン，３−クロロプロ
ピルトリメトキシシランなどである。また、公知の分散
性向上剤のうち好ましいものはシランカップリング剤、
特に３−アミノプロピルトリメトキシシランである。In the dilatancy liquid of the present invention,
In order to improve the dispersibility of the inorganic compound particles or the organic compound particles in the organopolysiloxane having a nitrogen atom-containing functional group, or the specific gravity of the inorganic compound particles or the organic compound particles is a nitrogen atom-containing functional group as a dispersion medium. It is optional to treat the surface of the particles with a silane coupling agent or a titanium coupling agent or to add a known dispersibility-improving agent in order to bring it close to that of the organopolysiloxane having a group. The preferred amount of the dispersibility improver added is 1 to 20 parts by weight. Examples of the silane coupling agent usable in the present invention include vinyltriethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-mercaptopropyl. Examples include trimethoxysilane and 3-chloropropyltrimethoxysilane. Further, among known dispersibility improvers, preferred ones are silane coupling agents,
In particular, it is 3-aminopropyltrimethoxysilane.
【００１４】本発明のダイラタンシー性液体において
は、流動性向上剤を添加して極性をコントロールするこ
とにより、無機化合物の分散状態を変化させ、流動性を
向上させることも可能である。更に、増稠剤、ゲル状物
を添加して、チキソトロピック性を与えることにより、
低せん断力下あるいは蒸気圧下で流れ難いグリース状物
としてもよい。In the dilatancy liquid of the present invention, it is possible to improve the fluidity by changing the dispersion state of the inorganic compound by adding a fluidity improver to control the polarity. Furthermore, by adding a thickener and a gel-like substance to give thixotropic properties,
It may be a grease-like material that is difficult to flow under low shearing force or steam pressure.
【００１５】本発明のダイラタンシー性液体の製造方法
としては、６０℃以上の高温下で、無機化合物粒子また
は有機化合物粒子と窒素原子含有の官能基を有するオル
ガノポリシロキサンとを攪拌して均一に分散させるか、
または、オルガノポリシロキサンに無機化合物粒子また
は有機化合物粒子を攪拌下、徐々に添加して分散させる
方法が好ましい。As the method for producing the dilatancy liquid of the present invention, the inorganic compound particles or organic compound particles and the organopolysiloxane having a nitrogen atom-containing functional group are stirred and uniformly dispersed at a high temperature of 60 ° C. or higher. Or let
Alternatively, a method of gradually adding inorganic compound particles or organic compound particles to the organopolysiloxane with stirring and dispersing them is preferable.
【００１６】[0016]
【実施例】以下に実施例を記載し、本発明を具体的に説
明するが、本発明はこれらによって限定されるものでは
ない。EXAMPLES The present invention will be described in detail below with reference to examples, but the present invention is not limited thereto.
【００１７】（実施例１）シリコーンレジンパウダー・
ＫＭＰ−５９０[信越化学工業（株）製商品名]１００重
量部と下記式（５）で示されるアミノシロキサン（２５
℃粘度１２cs）５３重量部とを反応用のガラスフラスコ
に入れ、混合し８０℃で３０分間攪拌し、半透明の液体
１５３重量部を得た。(Example 1) Silicone resin powder
100 parts by weight of KMP-590 [trade name of Shin-Etsu Chemical Co., Ltd.] and aminosiloxane (25) represented by the following formula (5):
C. Viscosity 12 cs) 53 parts by weight were placed in a glass flask for reaction, mixed and stirred at 80 ° C. for 30 minutes to obtain 153 parts by weight of a semitransparent liquid.
【００１８】[0018]
【化３】 [Chemical 3]
【００１９】（実施例２）実施例1のシリコーンレジン
パウダーをシリカパウダー・エロジル２００（日本エロ
ジル社製商品名）８０重量部に変更した他は全て実施例
1と同様にして、半透明の液体１３３重量部を得た。(Example 2) All the examples except that the silicone resin powder of Example 1 was changed to 80 parts by weight of silica powder Elosil 200 (trade name of Nippon Erosil Co., Ltd.)
In the same manner as in 1, 133 parts by weight of a semitransparent liquid was obtained.
【００２０】（実施例３）実施例1のシリコーンレジン
パウダーをナイロン粒子・ＳＰ−５００[東レ（株）製
商品名]１００重量部に、アミノシロキサンを下記式
（６）で示されるオルガノポリシロキサン（２５℃粘度
５０cs）４５重量部に変更した他は全て実施例1と同様
にして、半透明の液体１４５重量部を得た。Example 3 The silicone resin powder of Example 1 was added to 100 parts by weight of nylon particles SP-500 [trade name of Toray Industries, Inc.], and aminosiloxane was used as an organopolysiloxane represented by the following formula (6). 145 parts by weight of a semitransparent liquid was obtained in the same manner as in Example 1 except that the viscosity was changed to 45 parts by weight (25 ° C., 50 cs).
【００２１】[0021]
【化４】 [Chemical 4]
【００２２】（比較例１）シリコーンレジンパウダー・
ＫＭＰ−５９０[信越化学工業（株）製商品名]１００重
量部と下記式（７）で示されるジメチルシロキサン（２
５℃粘度１０cs）５３重量部とを反応用ガラスフラスコ
に加え、混合し、８０℃で３０分間攪拌したところ、硬
いコンパウンドとなってしまった。(Comparative Example 1) Silicone resin powder
100 parts by weight of KMP-590 [trade name of Shin-Etsu Chemical Co., Ltd.] and dimethylsiloxane (2) represented by the following formula (7):
53 parts by weight of a 5 ° C. viscosity of 10 cs) was added to a reaction glass flask, mixed and stirred at 80 ° C. for 30 minutes, resulting in a hard compound.
【００２３】[0023]
【化５】 [Chemical 5]
【００２４】（比較例２）比較例1のジメチルシロキサ
ン（２５℃粘度１０cs ）５３重量部を６５重量部に変
更した他は全て比較例1と同様の方法で行ったところ、
白色液体１１８重量部を得た。Comparative Example 2 The same procedure as in Comparative Example 1 was repeated except that 53 parts by weight of dimethylsiloxane (viscosity at 25 ° C., 10 cs) of Comparative Example 1 was changed to 65 parts by weight.
118 parts by weight of white liquid was obtained.
【００２５】（比較例３）シリコーンレジンパウダー・
ＫＭＰ−５９０[信越化学工業（株）製商品名]１００重
量部と０．５％アンモニア水５０重量部とをガラスフラ
スコに入れ混合し、３０℃で３０分間攪拌したが、シリ
コーンレジンパウダーはアンモニア水に分散しなかっ
た。以上の実施例、比較例で得られた各液体について、
東京計器（株）製回転粘度計（Ｂ８Ｕ型、Ｎｏ．５ロー
ター使用）で粘度(単位ｃｐ)を測定し、その結果を表1
に記載した。(Comparative Example 3) Silicone resin powder
100 parts by weight of KMP-590 [trade name of Shin-Etsu Chemical Co., Ltd.] and 50 parts by weight of 0.5% ammonia water were put into a glass flask and mixed, and the mixture was stirred at 30 ° C. for 30 minutes, but the silicone resin powder was ammonia. It did not disperse in water. For each of the liquids obtained in the above Examples and Comparative Examples,
The viscosity (unit: cp) was measured with a Tokyo Keiki Co., Ltd. rotational viscometer (B8U type, No. 5 rotor used), and the results are shown in Table 1.
Described in.
【００２６】[0026]
【表１】 [Table 1]
【００２７】（実施例の総括）比較例から解るように、
通常のシロキサン、例えば、ジメチルシロキサンではロ
ーターが高速回転になるほど、粘度が低下して、ダイラ
タンシー性は認められないが、本発明の組成物ではロー
ターが高速回転になるほど、高粘度化する、即ち、ダイ
ラタンシー性が認められる。しかも、水を溶媒として使
用する場合、水が固化する温度である−５℃においても
ダイラタンシー性が発現されることが解る。(Summary of Examples) As can be seen from the comparative examples,
In the case of a normal siloxane, for example, dimethylsiloxane, the higher the rotor rotates, the lower the viscosity becomes and the dilatancy is not recognized, but in the composition of the present invention, the higher the rotor rotates, the higher the viscosity becomes, that is, Dilatancy is recognized. Moreover, when water is used as a solvent, it is understood that dilatancy is exhibited even at -5 ° C, which is the temperature at which water solidifies.
【００２８】[0028]
【発明の効果】本発明のダイラタンシー性液体は温度変
化に伴う粘度変化が小さく、広い温度範囲で液状を保持
し、機械的強度が大きく、せん断応力の増大に伴う粘性
抵抗の変化量が大きいという優れた特性を有する。従っ
て、本発明のダイラタンシー性液体はクラッチや防振装
置などの作動液体として有用である。EFFECTS OF THE INVENTION The dilatancy liquid of the present invention has a small change in viscosity with a change in temperature, retains the liquid in a wide temperature range, has a large mechanical strength, and has a large change in viscous resistance with an increase in shear stress. It has excellent characteristics. Therefore, the dilatancy liquid of the present invention is useful as a working liquid for clutches, anti-vibration devices and the like.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4J002 BB002 BG002 CL002 CP032 CP091 DE076 DE096 DE146 DF016 DJ006 DJ016 FA082 FA086 FB092 FB096 GN00 HA02 4J035 BA02 CA05U CA051 CA19M CA191 FB01 LA02 LB20 ─────────────────────────────────────────────────── ─── Continued front page F term (reference) 4J002 BB002 BG002 CL002 CP032 CP091 DE076 DE096 DE146 DF016 DJ006 DJ016 FA082 FA086 FB092 FB096 GN00 HA02 4J035 BA02 CA05U CA051 CA19M CA191 FB01 LA02 LB20
Claims (2)
ポリシロキサン１０〜５００重量部、無機化合物粒子ま
たは有機化合物粒子１００重量部からなり、低せん断力
下でゾル状となり、高せん断力下でゲル状となるダイラ
タンシー性液体。1. A composition comprising 10 to 500 parts by weight of an organopolysiloxane having a nitrogen atom-containing functional group, 100 parts by weight of inorganic compound particles or organic compound particles, and becomes a sol under a low shear force and a gel under a high shear force. Dilatancy liquid that becomes a shape.
（１）で表されるアミノ変性オルガノポリシロキサンで
ある請求項1に記載のダイラタンシー性液体。 ＲaＲ’bＳｉＯ(4-a-b)/2 （１） [式中、Ｒは置換または非置換の1価炭化水素基、Ｒ’は
アミノ基含有の1価炭化水素基、ａ，ｂは０≦ａ≡２．
０，０≡ｂ≡１．０，０≡（ａ+ｂ）≡２．５を満たす
数である。]2. The dilatancy liquid according to claim 1, wherein the organopolysiloxane is an amino-modified organopolysiloxane represented by the following general formula (1). R a R ′ b SiO (4-ab) / 2 (1) [wherein R is a substituted or unsubstituted monovalent hydrocarbon group, R ′ is an amino group-containing monovalent hydrocarbon group, and a and b are 0 ≦ a≡2.
It is a number that satisfies 0,0≡b≡1.0,0≡ (a + b) ≡2.5. ]
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001378449A JP3867898B2 (en) | 2001-12-12 | 2001-12-12 | Dilatancy liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001378449A JP3867898B2 (en) | 2001-12-12 | 2001-12-12 | Dilatancy liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003176415A true JP2003176415A (en) | 2003-06-24 |
| JP3867898B2 JP3867898B2 (en) | 2007-01-17 |
Family
ID=19186168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001378449A Expired - Fee Related JP3867898B2 (en) | 2001-12-12 | 2001-12-12 | Dilatancy liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3867898B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011078396A1 (en) | 2009-12-22 | 2011-06-30 | Dow Corning Toray Co., Ltd. | Method of producing a silicone oil composition |
| JP2018001597A (en) * | 2016-07-01 | 2018-01-11 | 株式会社Ｓｕｂａｒｕ | Resin pipe molding method and resin pipe molding device |
| JP2019094382A (en) * | 2017-11-20 | 2019-06-20 | 三洋化成工業株式会社 | Resin composition |
| CN111077027A (en) * | 2019-12-13 | 2020-04-28 | 天津大学 | Method for determining shear strength of calcareous sand under high stress |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6874366B2 (en) | 2016-12-28 | 2021-05-19 | 信越化学工業株式会社 | Silicone composition and its cured product |
| WO2020243835A1 (en) * | 2019-06-04 | 2020-12-10 | Mcmaster University | Transient polymer networks |
| JP2022160028A (en) | 2021-04-06 | 2022-10-19 | 信越化学工業株式会社 | Silicone composition, and cured article thereof |
-
2001
- 2001-12-12 JP JP2001378449A patent/JP3867898B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011078396A1 (en) | 2009-12-22 | 2011-06-30 | Dow Corning Toray Co., Ltd. | Method of producing a silicone oil composition |
| JP2011132286A (en) * | 2009-12-22 | 2011-07-07 | Dow Corning Toray Co Ltd | Method for producing silicone oil composition |
| CN102666668A (en) * | 2009-12-22 | 2012-09-12 | 道康宁东丽株式会社 | Method of producing a silicone oil composition |
| US20120321679A1 (en) * | 2009-12-22 | 2012-12-20 | Yoshitsugu Morita | Method Of Producing A Silicone Oil Composition |
| JP2018001597A (en) * | 2016-07-01 | 2018-01-11 | 株式会社Ｓｕｂａｒｕ | Resin pipe molding method and resin pipe molding device |
| JP2019094382A (en) * | 2017-11-20 | 2019-06-20 | 三洋化成工業株式会社 | Resin composition |
| JP7058982B2 (en) | 2017-11-20 | 2022-04-25 | 三洋化成工業株式会社 | Resin composition |
| CN111077027A (en) * | 2019-12-13 | 2020-04-28 | 天津大学 | Method for determining shear strength of calcareous sand under high stress |
| CN111077027B (en) * | 2019-12-13 | 2022-04-29 | 天津大学 | Method for determining shear strength of calcareous sand under high stress |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3867898B2 (en) | 2007-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0661334B1 (en) | Silicone rubber particles coated with silicone resin | |
| JP3922370B2 (en) | Dilatancy fluid composition | |
| RU2009117593A (en) | SILICONE AGENT REGULATING FOAMING | |
| JPS6116927A (en) | Manufacture of polydiorganosiloxane aqueous latex | |
| TW546270B (en) | Cement composition | |
| CN109415566A (en) | Thermal conductivity constituent polyorganosiloxane composition | |
| JP4289881B2 (en) | Composite silicone rubber particles and method for producing the same | |
| AU759798B2 (en) | Aqueous silicone dispersion, crosslinkable into transparent elastomer | |
| JP5480288B2 (en) | High viscosity silicone polyether emulsion | |
| JP3044048B2 (en) | Organopolysiloxane-based elastomer powder and method for producing the same | |
| JP3867898B2 (en) | Dilatancy liquid | |
| KR20200067877A (en) | Method for producing silica-coated silicone elastomer spherical particles and silica-coated silicone elastomer spherical particles | |
| JPH05171047A (en) | Organopolysiloxane composition for formation of releasable cured film | |
| JP4219686B2 (en) | Grease-like silicone composition | |
| JP2001064391A (en) | Method for polymerizing organofunctional cocyclic siloxane | |
| KR920002490B1 (en) | Surface-treated polyorganosilsesquioxane fine powder | |
| JPH05320417A (en) | Powder for modifying thermoplastic resin | |
| JP4073085B2 (en) | Suspension type silicone adhesive, method for producing the same, and method for producing an adhesive substrate | |
| JP2000204257A (en) | Resin-filler formed in-situ in silicone polymer composition and production of the silicone polymer composition | |
| JPH07767B2 (en) | Polish | |
| JP3167954B2 (en) | Anti-vibration composition | |
| US6479583B2 (en) | Polymerization of silicone microemulsions | |
| JP7426283B2 (en) | Polyether/polysiloxane crosslinked rubber spherical particles and method for producing the same, polyether/polysiloxane crosslinked composite particles and method for producing the same | |
| WO2006070674A1 (en) | Vibration-damping silicone composition | |
| JP2000080277A (en) | Silicone oil compound composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040602 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060308 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060313 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060502 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060719 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060907 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20061004 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20061005 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 3867898 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091020 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121020 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20151020 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |